@misc{indiciae1c071ee6eed3,
  title = {Chaotic billiards generated by arithmetic groups.},
  author = {EB Bogomolny and B Georgeot and M Giannoni and C Schmit},
  year = {1992},
  doi = {10.1103/physrevlett.69.1477},
  url = {https://pubmed.ncbi.nlm.nih.gov/10046232/},
  note = {Source identifier: 10046232}
}